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llvm-mirror/test/CodeGen/X86/2006-01-19-ISelFoldingBug.ll
Roman Lebedev 18451cc4a4 [NFC][X86][Codegen] Megacommit: mass-regenerate all check lines that were already autogenerated
The motivation is that the update script has at least two deviations
(`<...>@GOT`/`<...>@PLT`/ and not hiding pointer arithmetics) from
what pretty much all the checklines were generated with,
and most of the tests are still not updated, so each time one of the
non-up-to-date tests is updated to see the effect of the code change,
there is a lot of noise. Instead of having to deal with that each
time, let's just deal with everything at once.

This has been done via:
```
cd llvm-project/llvm/test/CodeGen/X86
grep -rl "; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py" | xargs -L1 <...>/llvm-project/llvm/utils/update_llc_test_checks.py --llc-binary <...>/llvm-project/build/bin/llc
```

Not all tests were regenerated, however.
2021-06-11 23:57:02 +03:00

32 lines
896 B
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s | FileCheck %s
;
; Check that the isel does not fold the shld, which already folds a load
; and has two uses, into a store.
target triple = "i686-unknown-unknown"
@A = external dso_local global i32
define i32 @test5(i32 %B, i8 %C) {
; CHECK-LABEL: test5:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: movb {{[0-9]+}}(%esp), %cl
; CHECK-NEXT: movl {{[0-9]+}}(%esp), %edx
; CHECK-NEXT: movl A, %eax
; CHECK-NEXT: shldl %cl, %edx, %eax
; CHECK-NEXT: movl %eax, A
; CHECK-NEXT: retl
entry:
%tmp.1 = load i32, i32* @A
%shift.upgrd.1 = zext i8 %C to i32
%tmp.2 = shl i32 %tmp.1, %shift.upgrd.1
%tmp.3 = sub i8 32, %C
%shift.upgrd.2 = zext i8 %tmp.3 to i32
%tmp.4 = lshr i32 %B, %shift.upgrd.2
%tmp.5 = or i32 %tmp.4, %tmp.2
store i32 %tmp.5, i32* @A
ret i32 %tmp.5
}