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76 lines
2.2 KiB
76 lines
2.2 KiB
4 months ago
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=riscv32 -verify-machineinstrs < %s \
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; RUN: | FileCheck %s -check-prefix=RV32I
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; TODO: lbu and lhu should be selected to avoid the unnecessary masking.
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@bytes = global [5 x i8] zeroinitializer, align 1
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define i32 @test_zext_i8() nounwind {
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; RV32I-LABEL: test_zext_i8:
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; RV32I: # %bb.0: # %entry
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; RV32I-NEXT: lui a0, %hi(bytes)
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; RV32I-NEXT: lbu a1, %lo(bytes)(a0)
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; RV32I-NEXT: addi a0, a0, %lo(bytes)
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; RV32I-NEXT: lbu a0, 1(a0)
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; RV32I-NEXT: xori a1, a1, 136
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; RV32I-NEXT: xori a0, a0, 7
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; RV32I-NEXT: or a0, a1, a0
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; RV32I-NEXT: bnez a0, .LBB0_2
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; RV32I-NEXT: # %bb.1: # %if.end
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; RV32I-NEXT: mv a0, zero
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; RV32I-NEXT: ret
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; RV32I-NEXT: .LBB0_2: # %if.then
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; RV32I-NEXT: addi a0, zero, 1
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; RV32I-NEXT: ret
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entry:
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%0 = load i8, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @bytes, i32 0, i32 0), align 1
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%cmp = icmp eq i8 %0, -120
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%1 = load i8, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @bytes, i32 0, i32 1), align 1
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%cmp3 = icmp eq i8 %1, 7
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%or.cond = and i1 %cmp, %cmp3
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br i1 %or.cond, label %if.end, label %if.then
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if.then:
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ret i32 1
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if.end:
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ret i32 0
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}
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@shorts = global [5 x i16] zeroinitializer, align 2
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define i32 @test_zext_i16() nounwind {
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; RV32I-LABEL: test_zext_i16:
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; RV32I: # %bb.0: # %entry
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; RV32I-NEXT: lui a0, %hi(shorts)
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; RV32I-NEXT: lhu a1, %lo(shorts)(a0)
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; RV32I-NEXT: addi a0, a0, %lo(shorts)
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; RV32I-NEXT: lhu a0, 2(a0)
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; RV32I-NEXT: lui a2, 16
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; RV32I-NEXT: addi a2, a2, -120
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; RV32I-NEXT: xor a1, a1, a2
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; RV32I-NEXT: xori a0, a0, 7
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; RV32I-NEXT: or a0, a1, a0
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; RV32I-NEXT: bnez a0, .LBB1_2
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; RV32I-NEXT: # %bb.1: # %if.end
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; RV32I-NEXT: mv a0, zero
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; RV32I-NEXT: ret
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; RV32I-NEXT: .LBB1_2: # %if.then
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; RV32I-NEXT: addi a0, zero, 1
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; RV32I-NEXT: ret
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entry:
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%0 = load i16, i16* getelementptr inbounds ([5 x i16], [5 x i16]* @shorts, i32 0, i32 0), align 2
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%cmp = icmp eq i16 %0, -120
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%1 = load i16, i16* getelementptr inbounds ([5 x i16], [5 x i16]* @shorts, i32 0, i32 1), align 2
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%cmp3 = icmp eq i16 %1, 7
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%or.cond = and i1 %cmp, %cmp3
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br i1 %or.cond, label %if.end, label %if.then
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if.then:
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ret i32 1
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if.end:
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ret i32 0
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}
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