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| author | Chris Lattner <sabre@nondot.org> | 2010-02-09 06:24:00 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2010-02-09 06:24:00 +0000 |
| commit | 71d845c48a637d5046ad9decc8ff3b3343db0e14 (patch) | |
| tree | a171f1ba2e42e46acc5d0f8af0dd69379c0f3e31 /test/CodeGen/X86/add.ll | |
| parent | 2b7ff1be960de708c6192c8e7f8e992e54b8b020 (diff) | |
| download | llvm-71d845c48a637d5046ad9decc8ff3b3343db0e14.tar.gz llvm-71d845c48a637d5046ad9decc8ff3b3343db0e14.tar.bz2 llvm-71d845c48a637d5046ad9decc8ff3b3343db0e14.tar.xz | |
consolidate and filecheckize two tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95652 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/add.ll')
| -rw-r--r-- | test/CodeGen/X86/add.ll | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/test/CodeGen/X86/add.ll b/test/CodeGen/X86/add.ll new file mode 100644 index 0000000000..71c91fb5a8 --- /dev/null +++ b/test/CodeGen/X86/add.ll @@ -0,0 +1,25 @@ +; RUN: llc < %s -march=x86 | FileCheck %s -check-prefix=X32 +; RUN: llc < %s -march=x86-64 | FileCheck %s -check-prefix=X64 + +; The immediate can be encoded in a smaller way if the +; instruction is a sub instead of an add. + +define i32 @test1(i32 inreg %a) nounwind { + %b = add i32 %a, 128 + ret i32 %b +; X32: subl $-128, %eax +; X64: subl $-128, +} +define i64 @test2(i64 inreg %a) nounwind { + %b = add i64 %a, 2147483648 + ret i64 %b +; X32: addl $-2147483648, %eax +; X64: subq $-2147483648, +} +define i64 @test3(i64 inreg %a) nounwind { + %b = add i64 %a, 128 + ret i64 %b + +; X32: addl $128, %eax +; X64: subq $-128, +} |