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llvm-mirror/test/CodeGen/ARM/fast-isel-br-phi.ll
Jim Grosbach f88c4f8dbc ARM: Constrain regclass for TSTri instruction.
Get the register class right for the TST instruction. This keeps the
machine verifier happy, enabling us to turn it on for another test.

rdar://12594152

llvm-svn: 189274
2013-08-26 20:22:05 +00:00

45 lines
1.5 KiB
LLVM

; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios
; This test ensures HandlePHINodesInSuccessorBlocks() is able to promote basic
; non-legal integer types (i.e., i1, i8, i16).
declare void @fooi8(i8)
declare void @fooi16(i16)
define void @foo(i1 %cmp) nounwind ssp {
entry:
br i1 %cmp, label %cond.true, label %cond.false
cond.true: ; preds = %entry
br label %cond.end
cond.false: ; preds = %entry
br label %cond.end
cond.end: ; preds = %cond.false, %cond.true
%cond = phi i1 [ 0, %cond.true ], [ 1, %cond.false ]
br i1 %cond, label %cond.true8, label %cond.false8
cond.true8: ; preds = %cond.end
br label %cond.end8
cond.false8: ; preds = %cond.end
br label %cond.end8
cond.end8: ; preds = %cond.false8, %cond.true8
%cond8 = phi i8 [ 0, %cond.true8 ], [ 1, %cond.false8 ]
call void @fooi8(i8 %cond8)
br i1 0, label %cond.true16, label %cond.false16
cond.true16: ; preds = %cond.end8
br label %cond.end16
cond.false16: ; preds = %cond.end8
br label %cond.end16
cond.end16: ; preds = %cond.false16, %cond.true16
%cond16 = phi i16 [ 0, %cond.true16 ], [ 1, %cond.false16 ]
call void @fooi16(i16 %cond16)
ret void
}