llvm/test/CodeGen/ARM/ifcvt-callback.ll
Akira Hatanaka fa6bc2e94d [ARM] Pass a callback to FunctionPass constructors to enable skipping execution
on a per-function basis.

Previously some of the passes were conditionally added to ARM's pass pipeline
based on the target machine's subtarget. This patch makes changes to add those
passes unconditionally and execute them conditonally based on the predicate
functor passed to the pass constructors. This enables running different sets of
passes for different functions in the module.

rdar://problem/20542263

Differential Revision: http://reviews.llvm.org/D8717


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239325 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-08 18:50:43 +00:00

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LLVM

; RUN: llc -march thumb %s -o - | FileCheck %s
; This test checks that if-conversion pass is unconditionally added to the pass
; pipeline and is conditionally executed based on the per-function targert-cpu
; attribute.
; CHECK: ite eq
define i32 @test_ifcvt(i32 %a, i32 %b) #0 {
%tmp2 = icmp eq i32 %a, 0
br i1 %tmp2, label %cond_false, label %cond_true
cond_true:
%tmp5 = add i32 %b, 1
ret i32 %tmp5
cond_false:
%tmp7 = add i32 %b, -1
ret i32 %tmp7
}
attributes #0 = { "target-cpu"="cortex-a8" }