From 96ef284da415cccd60cf5066929a4683dec5dd79 Mon Sep 17 00:00:00 2001 From: Joel Jones Date: Mon, 18 Jun 2012 14:51:32 +0000 Subject: This change handles a another case for generating the bic instruction when a compile time constant is known. This occurs when implicitly zero extending function arguments from 16 bits to 32 bits. The 8 bit case doesn't need to be handled, as the 8 bit constants are encoded directly, thereby not needing a separate load instruction to form the constant into a register. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158659 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/CodeGen/ARM/bicZext.ll | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 test/CodeGen/ARM/bicZext.ll (limited to 'test/CodeGen') diff --git a/test/CodeGen/ARM/bicZext.ll b/test/CodeGen/ARM/bicZext.ll new file mode 100644 index 0000000000..cf4b7ba0e0 --- /dev/null +++ b/test/CodeGen/ARM/bicZext.ll @@ -0,0 +1,19 @@ +; RUN: llc %s -o - | FileCheck %s +; ModuleID = 'bic.c' +target triple = "thumbv7-apple-ios3.0.0" + +define zeroext i16 @foo16(i16 zeroext %f) nounwind readnone optsize ssp { +entry: + ; CHECK: .thumb_func _foo16 + ; CHECK: {{bic[^#]*#3}} + %and = and i16 %f, -4 + ret i16 %and +} + +define i32 @foo32(i32 %f) nounwind readnone optsize ssp { +entry: + ; CHECK: .thumb_func _foo32 + ; CHECK: {{bic[^#]*#3}} + %and = and i32 %f, -4 + ret i32 %and +} -- cgit v1.2.3-70-g09d2