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| author | Chris Lattner <sabre@nondot.org> | 2011-04-17 20:23:29 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2011-04-17 20:23:29 +0000 |
| commit | 602fc0681726155942907debee1fe0b8b44ffc1b (patch) | |
| tree | 0bfeace2cbb88ef3fe10b95a0a513543aa490a12 /test/CodeGen/X86/fast-isel-x86-64.ll | |
| parent | 0a1c997c27706e315efb61b8b3e110d42cbaae64 (diff) | |
| download | llvm-602fc0681726155942907debee1fe0b8b44ffc1b.tar.gz llvm-602fc0681726155942907debee1fe0b8b44ffc1b.tar.bz2 llvm-602fc0681726155942907debee1fe0b8b44ffc1b.tar.xz | |
1. merge fast-isel-shift-imm.ll into fast-isel-x86-64.ll
2. implement rdar://9289501 - fast isel should fold trivial multiplies to shifts
3. teach tblgen to handle shift immediates that are different sizes than the
shifted operands, eliminating some code from the X86 fast isel backend.
4. Have FastISel::SelectBinaryOp use (the poorly named) FastEmit_ri_ function
instead of FastEmit_ri to simplify code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129666 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/fast-isel-x86-64.ll')
| -rw-r--r-- | test/CodeGen/X86/fast-isel-x86-64.ll | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/test/CodeGen/X86/fast-isel-x86-64.ll b/test/CodeGen/X86/fast-isel-x86-64.ll index e98c4730af..e74fd30b64 100644 --- a/test/CodeGen/X86/fast-isel-x86-64.ll +++ b/test/CodeGen/X86/fast-isel-x86-64.ll @@ -1,4 +1,4 @@ -; RUN: llc < %s -fast-isel -O0 -regalloc=fast | FileCheck %s +; RUN: llc < %s -fast-isel -O0 -regalloc=fast -asm-verbose=0 | FileCheck %s target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" target triple = "x86_64-apple-darwin10.0.0" @@ -61,3 +61,35 @@ define i32 @test4(i64 %idxprom9) nounwind { ; CHECK-NEXT: movzbl (%rax,%rdi), %eax ; CHECK-NEXT: ret } + + +; PR3242 - Out of range shifts should not be folded by fastisel. +define void @test5(i32 %x, i32* %p) nounwind { + %y = ashr i32 %x, 50000 + store i32 %y, i32* %p + ret void + +; CHECK: test5: +; CHECK: movl $50000, %ecx +; CHECK: sarl %cl, %edi +; CHECK: ret +} + +; rdar://9289501 - fast isel should fold trivial multiplies to shifts. +define i64 @test6(i64 %x) nounwind ssp { +entry: + %mul = mul nsw i64 %x, 8 + ret i64 %mul + +; CHECK: test6: +; CHECK: leaq (,%rdi,8), %rax +} + +define i32 @test7(i32 %x) nounwind ssp { +entry: + %mul = mul nsw i32 %x, 8 + ret i32 %mul +; CHECK: test7: +; CHECK: leal (,%rdi,8), %eax +} + |