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; NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
; RUN: llc -O0 -mtriple=aarch64-apple-ios -global-isel -stop-after=legalizer %s -o - | FileCheck %s
@global_var = external global i32
declare i32 @__gxx_personality_v0(...)
declare void @may_throw()
; This test checks that the widened G_CONSTANT operand to the phi in "continue" bb
; is placed before the potentially throwing call in the entry block.
define i1 @test_lpad_phi_widen_into_pred() personality ptr @__gxx_personality_v0 {
; CHECK-LABEL: name: test_lpad_phi_widen_into_pred
; CHECK: bb.1 (%ir-block.0):
; CHECK-NEXT: successors: %bb.3(0x40000000), %bb.2(0x40000000)
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 11
; CHECK-NEXT: [[GV:%[0-9]+]]:_(p0) = G_GLOBAL_VALUE @global_var
; CHECK-NEXT: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 42
; CHECK-NEXT: G_STORE [[C1]](s32), [[GV]](p0) :: (store (s32) into @global_var)
; CHECK-NEXT: [[C2:%[0-9]+]]:_(s16) = G_CONSTANT i16 1
; CHECK-NEXT: G_INVOKE_REGION_START
; CHECK-NEXT: EH_LABEL <mcsymbol >
; CHECK-NEXT: ADJCALLSTACKDOWN 0, 0, implicit-def $sp, implicit $sp
; CHECK-NEXT: BL @may_throw, csr_darwin_aarch64_aapcs, implicit-def $lr, implicit $sp
; CHECK-NEXT: ADJCALLSTACKUP 0, 0, implicit-def $sp, implicit $sp
; CHECK-NEXT: EH_LABEL <mcsymbol >
; CHECK-NEXT: G_BR %bb.3
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.2.lpad (landing-pad):
; CHECK-NEXT: successors: %bb.3(0x80000000)
; CHECK-NEXT: liveins: $x0, $x1
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[PHI:%[0-9]+]]:_(s32) = G_PHI [[C]](s32), %bb.1
; CHECK-NEXT: EH_LABEL <mcsymbol >
; CHECK-NEXT: [[GV1:%[0-9]+]]:_(p0) = G_GLOBAL_VALUE @global_var
; CHECK-NEXT: G_STORE [[PHI]](s32), [[GV1]](p0) :: (store (s32) into @global_var)
; CHECK-NEXT: [[C3:%[0-9]+]]:_(s16) = G_CONSTANT i16 0
; CHECK-NEXT: G_BR %bb.3
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.3.continue:
; CHECK-NEXT: [[PHI1:%[0-9]+]]:_(s16) = G_PHI [[C2]](s16), %bb.1, [[C3]](s16), %bb.2
; CHECK-NEXT: [[C4:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
; CHECK-NEXT: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[PHI1]](s16)
; CHECK-NEXT: [[AND:%[0-9]+]]:_(s32) = G_AND [[ANYEXT]], [[C4]]
; CHECK-NEXT: $w0 = COPY [[AND]](s32)
; CHECK-NEXT: RET_ReallyLR implicit $w0
store i32 42, ptr @global_var
invoke void @may_throw()
to label %continue unwind label %lpad
lpad: ; preds = %entry
%p = phi i32 [ 11, %0 ]
%1 = landingpad { ptr, i32 }
catch ptr null
store i32 %p, ptr @global_var
br label %continue
continue: ; preds = %entry, %lpad
%r.0 = phi i1 [ 1, %0 ], [ 0, %lpad ]
ret i1 %r.0
}
; Same test but with extensions.
define i1 @test_lpad_phi_widen_into_pred_ext(ptr %ptr) personality ptr @__gxx_personality_v0 {
; CHECK-LABEL: name: test_lpad_phi_widen_into_pred_ext
; CHECK: bb.1 (%ir-block.0):
; CHECK-NEXT: successors: %bb.3(0x40000000), %bb.2(0x40000000)
; CHECK-NEXT: liveins: $x0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:_(p0) = COPY $x0
; CHECK-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 11
; CHECK-NEXT: [[GV:%[0-9]+]]:_(p0) = G_GLOBAL_VALUE @global_var
; CHECK-NEXT: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 42
; CHECK-NEXT: G_STORE [[C1]](s32), [[GV]](p0) :: (store (s32) into @global_var)
; CHECK-NEXT: [[LOAD:%[0-9]+]]:_(s8) = G_LOAD [[COPY]](p0) :: (load (s8) from %ir.ptr)
; CHECK-NEXT: [[ASSERT_ZEXT:%[0-9]+]]:_(s8) = G_ASSERT_ZEXT [[LOAD]], 1
; CHECK-NEXT: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[ASSERT_ZEXT]](s8)
; CHECK-NEXT: G_INVOKE_REGION_START
; CHECK-NEXT: EH_LABEL <mcsymbol >
; CHECK-NEXT: ADJCALLSTACKDOWN 0, 0, implicit-def $sp, implicit $sp
; CHECK-NEXT: BL @may_throw, csr_darwin_aarch64_aapcs, implicit-def $lr, implicit $sp
; CHECK-NEXT: ADJCALLSTACKUP 0, 0, implicit-def $sp, implicit $sp
; CHECK-NEXT: EH_LABEL <mcsymbol >
; CHECK-NEXT: G_BR %bb.3
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.2.lpad (landing-pad):
; CHECK-NEXT: successors: %bb.3(0x80000000)
; CHECK-NEXT: liveins: $x0, $x1
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[PHI:%[0-9]+]]:_(s32) = G_PHI [[C]](s32), %bb.1
; CHECK-NEXT: EH_LABEL <mcsymbol >
; CHECK-NEXT: [[GV1:%[0-9]+]]:_(p0) = G_GLOBAL_VALUE @global_var
; CHECK-NEXT: G_STORE [[PHI]](s32), [[GV1]](p0) :: (store (s32) into @global_var)
; CHECK-NEXT: [[C2:%[0-9]+]]:_(s16) = G_CONSTANT i16 0
; CHECK-NEXT: G_BR %bb.3
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.3.continue:
; CHECK-NEXT: [[PHI1:%[0-9]+]]:_(s16) = G_PHI [[ANYEXT]](s16), %bb.1, [[C2]](s16), %bb.2
; CHECK-NEXT: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
; CHECK-NEXT: [[ANYEXT1:%[0-9]+]]:_(s32) = G_ANYEXT [[PHI1]](s16)
; CHECK-NEXT: [[AND:%[0-9]+]]:_(s32) = G_AND [[ANYEXT1]], [[C3]]
; CHECK-NEXT: $w0 = COPY [[AND]](s32)
; CHECK-NEXT: RET_ReallyLR implicit $w0
store i32 42, ptr @global_var
%v = load i1, ptr %ptr
invoke void @may_throw()
to label %continue unwind label %lpad
lpad: ; preds = %entry
%p = phi i32 [ 11, %0 ]
%1 = landingpad { ptr, i32 }
catch ptr null
store i32 %p, ptr @global_var
br label %continue
continue: ; preds = %entry, %lpad
%r.0 = phi i1 [ %v, %0 ], [ 0, %lpad ]
ret i1 %r.0
}
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