From 76aeed376644c2ad0fa4e44217d39b3e3567b323 Mon Sep 17 00:00:00 2001 From: Evan Cheng Date: Sat, 11 Jul 2009 07:08:13 +0000 Subject: Smarter isel of ldrsb / ldrsh. Only make use of these when [r,r] address is feasible. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75360 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/CodeGen/Thumb/ldr_ext.ll | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) (limited to 'test/CodeGen/Thumb') diff --git a/test/CodeGen/Thumb/ldr_ext.ll b/test/CodeGen/Thumb/ldr_ext.ll index 4b2a7b2..f8b9d15 100644 --- a/test/CodeGen/Thumb/ldr_ext.ll +++ b/test/CodeGen/Thumb/ldr_ext.ll @@ -1,27 +1,34 @@ -; RUN: llvm-as < %s | llc -march=thumb | grep ldrb | count 1 -; RUN: llvm-as < %s | llc -march=thumb | grep ldrh | count 1 -; RUN: llvm-as < %s | llc -march=thumb | grep ldrsb | count 1 -; RUN: llvm-as < %s | llc -march=thumb | grep ldrsh | count 1 +; RUN: llvm-as < %s | llc -march=thumb | FileCheck %s define i32 @test1(i8* %v.pntr.s0.u1) { +; CHECK: test1: +; CHECK: ldrb %tmp.u = load i8* %v.pntr.s0.u1 %tmp1.s = zext i8 %tmp.u to i32 ret i32 %tmp1.s } define i32 @test2(i16* %v.pntr.s0.u1) { +; CHECK: test2: +; CHECK: ldrh %tmp.u = load i16* %v.pntr.s0.u1 %tmp1.s = zext i16 %tmp.u to i32 ret i32 %tmp1.s } define i32 @test3(i8* %v.pntr.s1.u0) { - %tmp.s = load i8* %v.pntr.s1.u0 +; CHECK: test3: +; CHECK: ldrb +; CHECK: sxtb + %tmp.s = load i8* %v.pntr.s1.u0 %tmp1.s = sext i8 %tmp.s to i32 ret i32 %tmp1.s } define i32 @test4() { +; CHECK: test4: +; CHECK: movs +; CHECK: ldrsh %tmp.s = load i16* null %tmp1.s = sext i16 %tmp.s to i32 ret i32 %tmp1.s -- cgit v1.1