59 lines
1.9 KiB
LLVM
59 lines
1.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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;RUN: llc < %s -mtriple=riscv64 -mattr=+f -mcpu=sifive-u74 -target-abi=lp64f \
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;RUN: | FileCheck %s --check-prefix=NOFUSION
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;RUN: llc < %s -mtriple=riscv64 -mattr=+f,+lui-addi-fusion -mcpu=sifive-u74 \
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;RUN: -target-abi=lp64f | FileCheck %s --check-prefix=FUSION
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;RUN: llc < %s -mtriple=riscv64 -mattr=+f,+lui-addi-fusion,+use-postra-scheduler -mcpu=sifive-u74 \
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;RUN: -target-abi=lp64f | FileCheck %s --check-prefixes=FUSION-POSTRA
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@.str = private constant [4 x i8] c"%f\0A\00", align 1
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define void @foo(i32 signext %0, i32 signext %1) {
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; NOFUSION-LABEL: foo:
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; NOFUSION: # %bb.0:
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; NOFUSION-NEXT: lui a0, %hi(.L.str)
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; NOFUSION-NEXT: fcvt.s.w fa0, a1
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; NOFUSION-NEXT: addi a0, a0, %lo(.L.str)
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; NOFUSION-NEXT: tail bar
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;
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; FUSION-LABEL: foo:
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; FUSION: # %bb.0:
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; FUSION-NEXT: fcvt.s.w fa0, a1
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; FUSION-NEXT: lui a0, %hi(.L.str)
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; FUSION-NEXT: addi a0, a0, %lo(.L.str)
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; FUSION-NEXT: tail bar
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;
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; FUSION-POSTRA-LABEL: foo:
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; FUSION-POSTRA: # %bb.0:
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; FUSION-POSTRA-NEXT: fcvt.s.w fa0, a1
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; FUSION-POSTRA-NEXT: lui a0, %hi(.L.str)
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; FUSION-POSTRA-NEXT: addi a0, a0, %lo(.L.str)
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; FUSION-POSTRA-NEXT: tail bar
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%3 = sitofp i32 %1 to float
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tail call void @bar(ptr @.str, float %3)
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ret void
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}
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declare void @bar(ptr, float)
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; Test that we prefer lui+addiw over li+slli.
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define i32 @test_matint() {
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; NOFUSION-LABEL: test_matint:
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; NOFUSION: # %bb.0:
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; NOFUSION-NEXT: li a0, 1
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; NOFUSION-NEXT: slli a0, a0, 11
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; NOFUSION-NEXT: ret
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;
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; FUSION-LABEL: test_matint:
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; FUSION: # %bb.0:
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; FUSION-NEXT: lui a0, 1
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; FUSION-NEXT: addiw a0, a0, -2048
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; FUSION-NEXT: ret
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;
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; FUSION-POSTRA-LABEL: test_matint:
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; FUSION-POSTRA: # %bb.0:
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; FUSION-POSTRA-NEXT: lui a0, 1
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; FUSION-POSTRA-NEXT: addiw a0, a0, -2048
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; FUSION-POSTRA-NEXT: ret
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ret i32 2048
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}
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