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91957b3e22
We had a bunch of vector size legality checks for the source type based on feature flags, but we didn't check the destination type at all beyond ensuring that it was a "simple" type. But this allowed the destination to be i128 which isn't legal. This commit changes the code to use TLI's isTypeLegal logic in place of the all the subtarget checks. Then additionally checks that the source and dest are vectors. Fixes 42452 llvm-svn: 364729
38 lines
1.3 KiB
LLVM
38 lines
1.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -O0 | FileCheck %s
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@b = external global i64, align 8
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define void @foo(i1 %c, <2 x i64> %x) {
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; CHECK-LABEL: foo:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: # kill: def $dil killed $dil killed $edi
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; CHECK-NEXT: movq %xmm0, %rax
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; CHECK-NEXT: pshufd {{.*#+}} xmm0 = xmm0[2,3,0,1]
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; CHECK-NEXT: movq %xmm0, %rcx
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; CHECK-NEXT: movb %dil, {{[-0-9]+}}(%r{{[sb]}}p) # 1-byte Spill
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; CHECK-NEXT: movq %rcx, {{[-0-9]+}}(%r{{[sb]}}p) # 8-byte Spill
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; CHECK-NEXT: .LBB0_1: # %for.body
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; CHECK-NEXT: # =>This Inner Loop Header: Depth=1
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; CHECK-NEXT: movb {{[-0-9]+}}(%r{{[sb]}}p), %al # 1-byte Reload
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; CHECK-NEXT: testb $1, %al
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; CHECK-NEXT: jne .LBB0_1
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; CHECK-NEXT: jmp .LBB0_2
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; CHECK-NEXT: .LBB0_2: # %for.end
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; CHECK-NEXT: movq {{[-0-9]+}}(%r{{[sb]}}p), %rax # 8-byte Reload
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; CHECK-NEXT: movq %rax, b
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; CHECK-NEXT: retq
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entry:
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%0 = bitcast <2 x i64> %x to i128
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br label %for.body
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for.body: ; preds = %for.body, %entry
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br i1 %c, label %for.body, label %for.end
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for.end: ; preds = %for.body
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%1 = lshr i128 %0, 64
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%2 = trunc i128 %1 to i64
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store i64 %2, i64* @b, align 8
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ret void
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}
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