From a92ef4ba5b6f19a9e730ad518e70bc5298c03648 Mon Sep 17 00:00:00 2001 From: Chad Rosier Date: Mon, 25 Feb 2013 21:59:35 +0000 Subject: [fast-isel] Add X86FastIsel::FastLowerArguments to handle functions with 6 or fewer scalar integer (i32 or i64) arguments. It completely eliminates the need for SDISel for trivial functions. Also, add the new llc -fast-isel-abort-args option, which is similar to -fast-isel-abort option, but for formal argument lowering. llvm-svn: 176052 --- llvm/test/CodeGen/X86/fast-isel-args.ll | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 llvm/test/CodeGen/X86/fast-isel-args.ll (limited to 'llvm/test/CodeGen/X86/fast-isel-args.ll') diff --git a/llvm/test/CodeGen/X86/fast-isel-args.ll b/llvm/test/CodeGen/X86/fast-isel-args.ll new file mode 100644 index 00000000000..ab42f6448d4 --- /dev/null +++ b/llvm/test/CodeGen/X86/fast-isel-args.ll @@ -0,0 +1,25 @@ +; RUN: llc < %s -fast-isel -fast-isel-abort -fast-isel-abort-args -verify-machineinstrs -mtriple=x86_64-apple-darwin10 + +; Just make sure these don't abort when lowering the arguments. +define i32 @t1(i32 %a, i32 %b, i32 %c) { +entry: + %add = add nsw i32 %b, %a + %add1 = add nsw i32 %add, %c + ret i32 %add1 +} + +define i64 @t2(i64 %a, i64 %b, i64 %c) { +entry: + %add = add nsw i64 %b, %a + %add1 = add nsw i64 %add, %c + ret i64 %add1 +} + +define i64 @t3(i32 %a, i64 %b, i32 %c) #2 { +entry: + %conv = sext i32 %a to i64 + %add = add nsw i64 %conv, %b + %conv1 = sext i32 %c to i64 + %add2 = add nsw i64 %add, %conv1 + ret i64 %add2 +} -- cgit v1.2.3