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| ; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu \
; RUN: -ppc-asm-full-reg-names -ppc-vsr-nums-as-vr < %s | FileCheck %s
; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr8 \
; RUN: -ppc-asm-full-reg-names -ppc-vsr-nums-as-vr < %s | FileCheck %s
; For known CRBit spills, CRSET/CRUNSET, it is more efficient to just load and
; spill the known value. These tests verify that for CRSET and CRUNSET spills
; we do not extract the bit for spilling.
%struct.anon = type { i32 }
@b = common dso_local global %struct.anon* null, align 8
@a = common dso_local global i64 0, align 8
; Function Attrs: nounwind
define dso_local signext i32 @spillCRSET(i32 signext %p1, i32 signext %p2) {
; CHECK-LABEL: spillCRSET:
; CHECK: # %bb.2:
; CHECK-DAG: crnor [[CREG:.*]]*cr5+lt, eq, eq
; CHECK-DAG: mfocrf [[REG2:.*]], [[CREG]]
; CHECK-DAG: rlwinm [[REG2]], [[REG2]]
; CHECK: .LBB0_3:
; CHECK-DAG: creqv [[CREG:.*]]*cr5+lt, [[CREG]]*cr5+lt, [[CREG]]*cr5+lt
; CHECK: lis [[REG1:.*]], -32768
; CHECK: .LBB0_4:
; CHECK-NOT: mfocrf [[REG2:.*]], [[CREG]]
; CHECK-NOT: rlwinm [[REG2]], [[REG2]]
; CHECK: stw [[REG1]]
; CHECK: # %bb.5:
entry:
%tobool = icmp eq i32 %p2, 0
%tobool2 = icmp eq i32 %p1, 0
br label %redo_first_pass
redo_first_pass: ; preds = %for.end, %entry
br i1 %tobool, label %if.end, label %if.then
if.then: ; preds = %redo_first_pass
%call = tail call signext i32 bitcast (i32 (...)* @fn2 to i32 ()*)() #2
%tobool1 = icmp ne i32 %call, 0
br label %if.end
if.end: ; preds = %redo_first_pass, %if.then
%c.1.off0 = phi i1 [ %tobool1, %if.then ], [ true, %redo_first_pass ]
br i1 %tobool2, label %if.end4, label %if.then3
if.then3: ; preds = %if.end
%0 = load %struct.anon*, %struct.anon** @b, align 8
%contains_i = getelementptr inbounds %struct.anon, %struct.anon* %0, i64 0, i32 0
store i32 1, i32* %contains_i, align 4
br label %if.end4
if.end4: ; preds = %if.end, %if.then3
tail call void asm sideeffect "#DO_NOTHING", "~{cr0},~{cr1},~{cr2},~{cr3},~{cr4},~{cr5},~{cr6},~{cr7}"()
br i1 %c.1.off0, label %if.then6, label %if.end13
if.then6: ; preds = %if.end4
%1 = load i64, i64* @a, align 8
%cmp21 = icmp eq i64 %1, 0
br i1 %cmp21, label %if.end13, label %for.body
for.body: ; preds = %if.then6, %for.body
%s.122 = phi i64 [ %inc, %for.body ], [ 0, %if.then6 ]
%call7 = tail call signext i32 bitcast (i32 (...)* @fn3 to i32 ()*)()
%inc = add nuw i64 %s.122, 1
%exitcond = icmp eq i64 %inc, %1
br i1 %exitcond, label %for.end, label %for.body
for.end: ; preds = %for.body
br i1 %cmp21, label %if.end13, label %redo_first_pass
if.end13: ; preds = %if.then6, %for.end, %if.end4
ret i32 0
}
%struct.p5rx = type { i32 }
; Function Attrs: nounwind
define dso_local signext i32 @spillCRUNSET(%struct.p5rx* readonly %p1, i32 signext %p2, i32 signext %p3) {
; CHECK-LABEL: spillCRUNSET:
; CHECK: # %bb.0: # %entry
; CHECK-DAG: crxor [[CREG:.*]]*cr5+lt, [[CREG]]*cr5+lt, [[CREG]]*cr5+lt
; CHECK-DAG: li [[REG1:.*]], 0
; CHECK-NOT: mfocrf [[REG2:.*]], [[CREG]]
; CHECK-NOT: rlwinm [[REG2]], [[REG2]]
; CHECK: stw [[REG1]]
; CHECK: .LBB1_1:
entry:
%and = and i32 %p3, 128
%tobool = icmp eq i32 %and, 0
%tobool2 = icmp eq %struct.p5rx* %p1, null
%sv_any = getelementptr inbounds %struct.p5rx, %struct.p5rx* %p1, i64 0, i32 0
%tobool12 = icmp eq i32 %p2, 0
br label %redo_first_pass
redo_first_pass: ; preds = %if.end11, %entry
%a.0.off0 = phi i1 [ false, %entry ], [ %a.1.off0, %if.end11 ]
br i1 %tobool, label %if.end, label %if.then
if.then: ; preds = %redo_first_pass
%call = tail call signext i32 bitcast (i32 (...)* @fn2 to i32 ()*)()
%tobool1 = icmp ne i32 %call, 0
br label %if.end
if.end: ; preds = %redo_first_pass, %if.then
%a.1.off0 = phi i1 [ %tobool1, %if.then ], [ %a.0.off0, %redo_first_pass ]
tail call void asm sideeffect "#DO_NOTHING", "~{cr0},~{cr1},~{cr2},~{cr3},~{cr4},~{cr5},~{cr6},~{cr7}"()
br i1 %tobool2, label %if.end11, label %land.lhs.true
land.lhs.true: ; preds = %if.end
%call3 = tail call signext i32 bitcast (i32 (...)* @fn3 to i32 ()*)()
%tobool4 = icmp eq i32 %call3, 0
br i1 %tobool4, label %if.end11, label %land.lhs.true5
land.lhs.true5: ; preds = %land.lhs.true
%0 = load i32, i32* %sv_any, align 4
%tobool6 = icmp eq i32 %0, 0
%a.1.off0.not = xor i1 %a.1.off0, true
%brmerge = or i1 %tobool6, %a.1.off0.not
br i1 %brmerge, label %if.end11, label %if.then9
if.then9: ; preds = %land.lhs.true5
%call10 = tail call signext i32 bitcast (i32 (...)* @fn4 to i32 ()*)()
br label %if.end11
if.end11: ; preds = %land.lhs.true5, %land.lhs.true, %if.end, %if.then9
br i1 %tobool12, label %if.end14, label %redo_first_pass
if.end14: ; preds = %if.end11
ret i32 0
}
declare signext i32 @fn2(...)
declare signext i32 @fn3(...)
declare signext i32 @fn4(...)
|