llvm-6502/ispositive.ll at 3fb2b1ede30193b59a651328a946174196b20610 - llvm-6502 - Applefritter: Git

6502/llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-11-01 15:11:24 +00:00

Evan Cheng 446c428bf3 Major changes to Thumb (not Thumb2). Many 16-bit instructions either modifies CPSR when they are outside the IT blocks, or they can predicated when in Thumb2. Move the implicit def of CPSR to an optional def which defaults CPSR. This allows the 's' bit to be toggled dynamically.

A side-effect of this change is asm printer is now using unified assembly. There are some minor clean ups and fixes as well.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75359 91177308-0d34-0410-b5e6-96231b3b80d8

2009-07-11 06:43:01 +00:00

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 ; RUN: llvm-as < %s | llc -march=thumb | FileCheck %s
 define i32 @test1(i32 %X) {
 entry:
 ; CHECK: test1:
 ; CHECK: lsrs r0, r0, #31
         icmp slt i32 %X, 0              ; <i1>:0 [#uses=1]
         zext i1 %0 to i32               ; <i32>:1 [#uses=1]
         ret i32 %1
 }