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242 lines
6.6 KiB
242 lines
6.6 KiB
; Test 8-bit unsigned comparisons between memory and constants.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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; Check ordered comparisons near the low end of the unsigned 8-bit range.
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define double @f1(double %a, double %b, i8 *%ptr) {
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; CHECK-LABEL: f1:
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; CHECK: cli 0(%r2), 1
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; CHECK-NEXT: bhr %r14
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; CHECK: br %r14
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%val = load i8 , i8 *%ptr
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%cond = icmp ugt i8 %val, 1
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check ordered comparisons near the high end of the unsigned 8-bit range.
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define double @f2(double %a, double %b, i8 *%ptr) {
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; CHECK-LABEL: f2:
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; CHECK: cli 0(%r2), 254
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; CHECK-NEXT: blr %r14
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; CHECK: br %r14
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%val = load i8 , i8 *%ptr
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%cond = icmp ult i8 %val, 254
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check tests for negative bytes.
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define double @f3(double %a, double %b, i8 *%ptr) {
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; CHECK-LABEL: f3:
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; CHECK: cli 0(%r2), 127
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; CHECK-NEXT: bhr %r14
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; CHECK: br %r14
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%val = load i8 , i8 *%ptr
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%cond = icmp slt i8 %val, 0
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; ...and an alternative form.
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define double @f4(double %a, double %b, i8 *%ptr) {
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; CHECK-LABEL: f4:
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; CHECK: cli 0(%r2), 127
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; CHECK-NEXT: bhr %r14
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; CHECK: br %r14
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%val = load i8 , i8 *%ptr
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%cond = icmp sle i8 %val, -1
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check tests for non-negative bytes.
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define double @f5(double %a, double %b, i8 *%ptr) {
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; CHECK-LABEL: f5:
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; CHECK: cli 0(%r2), 128
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; CHECK-NEXT: blr %r14
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; CHECK: br %r14
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%val = load i8 , i8 *%ptr
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%cond = icmp sge i8 %val, 0
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; ...and an alternative form.
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define double @f6(double %a, double %b, i8 *%ptr) {
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; CHECK-LABEL: f6:
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; CHECK: cli 0(%r2), 128
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; CHECK-NEXT: blr %r14
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; CHECK: br %r14
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%val = load i8 , i8 *%ptr
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%cond = icmp sgt i8 %val, -1
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check equality comparisons at the low end of the signed 8-bit range.
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define double @f7(double %a, double %b, i8 *%ptr) {
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; CHECK-LABEL: f7:
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; CHECK: cli 0(%r2), 128
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; CHECK-NEXT: ber %r14
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; CHECK: br %r14
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%val = load i8 , i8 *%ptr
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%cond = icmp eq i8 %val, -128
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check equality comparisons at the low end of the unsigned 8-bit range.
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define double @f8(double %a, double %b, i8 *%ptr) {
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; CHECK-LABEL: f8:
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; CHECK: cli 0(%r2), 0
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; CHECK-NEXT: ber %r14
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; CHECK: br %r14
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%val = load i8 , i8 *%ptr
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%cond = icmp eq i8 %val, 0
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check equality comparisons at the high end of the signed 8-bit range.
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define double @f9(double %a, double %b, i8 *%ptr) {
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; CHECK-LABEL: f9:
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; CHECK: cli 0(%r2), 127
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; CHECK-NEXT: ber %r14
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; CHECK: br %r14
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%val = load i8 , i8 *%ptr
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%cond = icmp eq i8 %val, 127
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check equality comparisons at the high end of the unsigned 8-bit range.
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define double @f10(double %a, double %b, i8 *%ptr) {
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; CHECK-LABEL: f10:
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; CHECK: cli 0(%r2), 255
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; CHECK-NEXT: ber %r14
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; CHECK: br %r14
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%val = load i8 , i8 *%ptr
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%cond = icmp eq i8 %val, 255
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check the high end of the CLI range.
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define double @f11(double %a, double %b, i8 *%src) {
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; CHECK-LABEL: f11:
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; CHECK: cli 4095(%r2), 127
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; CHECK: br %r14
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%ptr = getelementptr i8, i8 *%src, i64 4095
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%val = load i8 , i8 *%ptr
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%cond = icmp ult i8 %val, 127
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check the next byte up, which should use CLIY instead of CLI.
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define double @f12(double %a, double %b, i8 *%src) {
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; CHECK-LABEL: f12:
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; CHECK: cliy 4096(%r2), 127
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; CHECK: br %r14
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%ptr = getelementptr i8, i8 *%src, i64 4096
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%val = load i8 , i8 *%ptr
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%cond = icmp ult i8 %val, 127
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check the high end of the CLIY range.
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define double @f13(double %a, double %b, i8 *%src) {
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; CHECK-LABEL: f13:
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; CHECK: cliy 524287(%r2), 127
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; CHECK: br %r14
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%ptr = getelementptr i8, i8 *%src, i64 524287
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%val = load i8 , i8 *%ptr
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%cond = icmp ult i8 %val, 127
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check the next byte up, which needs separate address logic.
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; Other sequences besides this one would be OK.
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define double @f14(double %a, double %b, i8 *%src) {
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; CHECK-LABEL: f14:
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; CHECK: agfi %r2, 524288
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; CHECK: cli 0(%r2), 127
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; CHECK: br %r14
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%ptr = getelementptr i8, i8 *%src, i64 524288
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%val = load i8 , i8 *%ptr
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%cond = icmp ult i8 %val, 127
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check the high end of the negative CLIY range.
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define double @f15(double %a, double %b, i8 *%src) {
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; CHECK-LABEL: f15:
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; CHECK: cliy -1(%r2), 127
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; CHECK: br %r14
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%ptr = getelementptr i8, i8 *%src, i64 -1
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%val = load i8 , i8 *%ptr
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%cond = icmp ult i8 %val, 127
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check the low end of the CLIY range.
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define double @f16(double %a, double %b, i8 *%src) {
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; CHECK-LABEL: f16:
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; CHECK: cliy -524288(%r2), 127
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; CHECK: br %r14
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%ptr = getelementptr i8, i8 *%src, i64 -524288
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%val = load i8 , i8 *%ptr
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%cond = icmp ult i8 %val, 127
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check the next byte down, which needs separate address logic.
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; Other sequences besides this one would be OK.
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define double @f17(double %a, double %b, i8 *%src) {
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; CHECK-LABEL: f17:
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; CHECK: agfi %r2, -524289
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; CHECK: cli 0(%r2), 127
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; CHECK: br %r14
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%ptr = getelementptr i8, i8 *%src, i64 -524289
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%val = load i8 , i8 *%ptr
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%cond = icmp ult i8 %val, 127
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check that CLI does not allow an index
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define double @f18(double %a, double %b, i64 %base, i64 %index) {
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; CHECK-LABEL: f18:
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; CHECK: agr %r2, %r3
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; CHECK: cli 4095(%r2), 127
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; CHECK: br %r14
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%add1 = add i64 %base, %index
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%add2 = add i64 %add1, 4095
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%ptr = inttoptr i64 %add2 to i8 *
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%val = load i8 , i8 *%ptr
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%cond = icmp ult i8 %val, 127
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check that CLIY does not allow an index
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define double @f19(double %a, double %b, i64 %base, i64 %index) {
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; CHECK-LABEL: f19:
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; CHECK: agr %r2, %r3
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; CHECK: cliy 4096(%r2), 127
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; CHECK: br %r14
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%add1 = add i64 %base, %index
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%add2 = add i64 %add1, 4096
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%ptr = inttoptr i64 %add2 to i8 *
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%val = load i8 , i8 *%ptr
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%cond = icmp ult i8 %val, 127
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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