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95 lines
2.5 KiB
95 lines
2.5 KiB
; RUN: llc < %s -asm-verbose=false -verify-machineinstrs -disable-block-placement | FileCheck %s
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; Test irreducible CFG handling.
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target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
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target triple = "wasm32-unknown-unknown"
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; A simple loop with two entries.
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; CHECK-LABEL: test0:
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; CHECK: f64.load
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; CHECK: i32.const $[[REG:[^,]+]]=, 0{{$}}
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; CHECK: br_table $[[REG]],
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define void @test0(double* %arg, i32 %arg1, i32 %arg2, i32 %arg3) {
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bb:
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%tmp = icmp eq i32 %arg2, 0
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br i1 %tmp, label %bb6, label %bb3
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bb3:
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%tmp4 = getelementptr double, double* %arg, i32 %arg3
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%tmp5 = load double, double* %tmp4, align 4
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br label %bb13
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bb6:
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%tmp7 = phi i32 [ %tmp18, %bb13 ], [ 0, %bb ]
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%tmp8 = icmp slt i32 %tmp7, %arg1
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br i1 %tmp8, label %bb9, label %bb19
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bb9:
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%tmp10 = getelementptr double, double* %arg, i32 %tmp7
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%tmp11 = load double, double* %tmp10, align 4
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%tmp12 = fmul double %tmp11, 2.300000e+00
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store double %tmp12, double* %tmp10, align 4
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br label %bb13
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bb13:
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%tmp14 = phi double [ %tmp5, %bb3 ], [ %tmp12, %bb9 ]
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%tmp15 = phi i32 [ undef, %bb3 ], [ %tmp7, %bb9 ]
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%tmp16 = getelementptr double, double* %arg, i32 %tmp15
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%tmp17 = fadd double %tmp14, 1.300000e+00
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store double %tmp17, double* %tmp16, align 4
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%tmp18 = add nsw i32 %tmp15, 1
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br label %bb6
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bb19:
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ret void
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}
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; A simple loop with two entries and an inner natural loop.
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; CHECK-LABEL: test1:
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; CHECK: f64.load
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; CHECK: i32.const $[[REG:[^,]+]]=, 0{{$}}
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; CHECK: br_table $[[REG]],
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define void @test1(double* %arg, i32 %arg1, i32 %arg2, i32 %arg3) {
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bb:
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%tmp = icmp eq i32 %arg2, 0
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br i1 %tmp, label %bb6, label %bb3
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bb3:
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%tmp4 = getelementptr double, double* %arg, i32 %arg3
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%tmp5 = load double, double* %tmp4, align 4
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br label %bb13
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bb6:
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%tmp7 = phi i32 [ %tmp18, %bb13 ], [ 0, %bb ]
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%tmp8 = icmp slt i32 %tmp7, %arg1
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br i1 %tmp8, label %bb9, label %bb19
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bb9:
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%tmp10 = getelementptr double, double* %arg, i32 %tmp7
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%tmp11 = load double, double* %tmp10, align 4
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%tmp12 = fmul double %tmp11, 2.300000e+00
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store double %tmp12, double* %tmp10, align 4
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br label %bb10
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bb10:
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%p = phi i32 [ 0, %bb9 ], [ %pn, %bb10 ]
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%pn = add i32 %p, 1
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%c = icmp slt i32 %pn, 256
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br i1 %c, label %bb10, label %bb13
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bb13:
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%tmp14 = phi double [ %tmp5, %bb3 ], [ %tmp12, %bb10 ]
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%tmp15 = phi i32 [ undef, %bb3 ], [ %tmp7, %bb10 ]
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%tmp16 = getelementptr double, double* %arg, i32 %tmp15
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%tmp17 = fadd double %tmp14, 1.300000e+00
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store double %tmp17, double* %tmp16, align 4
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%tmp18 = add nsw i32 %tmp15, 1
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br label %bb6
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bb19:
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ret void
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}
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