llvm-project/llvm/test/CodeGen/Hexagon/noFalignAfterCallAtO2.ll

32 lines
813 B
LLVM

; RUN: llc -march=hexagon -O2 < %s | FileCheck %s
; Check that we don't generate .falign directives after function calls at O2.
; We need more than one basic block for this test because MachineBlockPlacement
; will not run on single basic block functions.
declare i32 @f0()
; We don't want faligns after the calls to foo.
; CHECK: call f0
; CHECK-NOT: falign
; CHECK: call f0
; CHECK-NOT: falign
; CHECK: dealloc_return
define i32 @f1(i32 %a0) #0 {
b0:
%v0 = icmp eq i32 %a0, 0
br i1 %v0, label %b1, label %b2
b1: ; preds = %b0
%v1 = call i32 @f0()
%v2 = call i32 @f0()
%v3 = add i32 %v1, %v2
ret i32 %v3
b2: ; preds = %b0
%v4 = add i32 %a0, 5
ret i32 %v4
}
attributes #0 = { nounwind }