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llvm-mirror/test/Transforms/StructurizeCFG/one-loop-multiple-backedges.ll
Matt Arsenault f19e85c475 Revert "StructurizeCFG: Directly invert cmp instructions"
This reverts commit r300732. This breaks a few tests.
I think the problem is related to adding more uses of
the condition that don't yet exist at this point.

llvm-svn: 301242
2017-04-24 20:25:01 +00:00

43 lines
1.2 KiB
LLVM

; RUN: opt -S -structurizecfg %s -o - | FileCheck %s
; CHECK-NOT: br i1 true
define void @blam(i32 addrspace(1)* nocapture %arg, float %arg1, float %arg2) {
; CHECK: bb:
bb:
br label %bb3
; CHECK: bb3:
bb3: ; preds = %bb7, %bb
%tmp = phi i64 [ 0, %bb ], [ %tmp8, %bb7 ]
%tmp4 = fcmp ult float %arg1, 3.500000e+00
; CHECK: %0 = xor i1 %tmp4, true
; CHECK: br i1 %0, label %bb5, label %Flow
br i1 %tmp4, label %bb7, label %bb5
; CHECK: bb5:
bb5: ; preds = %bb3
%tmp6 = fcmp olt float 0.000000e+00, %arg2
; CHECK: br label %Flow
br i1 %tmp6, label %bb10, label %bb7
; CHECK: Flow:
; CHECK: br i1 %3, label %bb7, label %Flow1
; CHECK: bb7
bb7: ; preds = %bb5, %bb3
%tmp8 = add nuw nsw i64 %tmp, 1
%tmp9 = icmp slt i64 %tmp8, 5
; CHECK: br label %Flow1
br i1 %tmp9, label %bb3, label %bb10
; CHECK: Flow1:
; CHECK: br i1 %7, label %bb10, label %bb3
; CHECK: bb10
bb10: ; preds = %bb7, %bb5
%tmp11 = phi i32 [ 15, %bb5 ], [ 255, %bb7 ]
store i32 %tmp11, i32 addrspace(1)* %arg, align 4
ret void
}