;
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
+declare i32 @foo()
+
; Check register comparison.
define double @f1(double %a, double %b, i32 %i1, i32 %i2) {
-; CHECK: f1:
+; CHECK-LABEL: f1:
; CHECK: crjl %r2, %r3
; CHECK: ldr %f0, %f2
; CHECK: br %r14
; Check the low end of the C range.
define double @f2(double %a, double %b, i32 %i1, i32 *%ptr) {
-; CHECK: f2:
+; CHECK-LABEL: f2:
; CHECK: c %r2, 0(%r3)
; CHECK-NEXT: jl
; CHECK: ldr %f0, %f2
; Check the high end of the aligned C range.
define double @f3(double %a, double %b, i32 %i1, i32 *%base) {
-; CHECK: f3:
+; CHECK-LABEL: f3:
; CHECK: c %r2, 4092(%r3)
; CHECK-NEXT: jl
; CHECK: ldr %f0, %f2
; Check the next word up, which should use CY instead of C.
define double @f4(double %a, double %b, i32 %i1, i32 *%base) {
-; CHECK: f4:
+; CHECK-LABEL: f4:
; CHECK: cy %r2, 4096(%r3)
; CHECK-NEXT: jl
; CHECK: ldr %f0, %f2
; Check the high end of the aligned CY range.
define double @f5(double %a, double %b, i32 %i1, i32 *%base) {
-; CHECK: f5:
+; CHECK-LABEL: f5:
; CHECK: cy %r2, 524284(%r3)
; CHECK-NEXT: jl
; CHECK: ldr %f0, %f2
; Check the next word up, which needs separate address logic.
; Other sequences besides this one would be OK.
define double @f6(double %a, double %b, i32 %i1, i32 *%base) {
-; CHECK: f6:
+; CHECK-LABEL: f6:
; CHECK: agfi %r3, 524288
; CHECK: c %r2, 0(%r3)
; CHECK-NEXT: jl
; Check the high end of the negative aligned CY range.
define double @f7(double %a, double %b, i32 %i1, i32 *%base) {
-; CHECK: f7:
+; CHECK-LABEL: f7:
; CHECK: cy %r2, -4(%r3)
; CHECK-NEXT: jl
; CHECK: ldr %f0, %f2
; Check the low end of the CY range.
define double @f8(double %a, double %b, i32 %i1, i32 *%base) {
-; CHECK: f8:
+; CHECK-LABEL: f8:
; CHECK: cy %r2, -524288(%r3)
; CHECK-NEXT: jl
; CHECK: ldr %f0, %f2
; Check the next word down, which needs separate address logic.
; Other sequences besides this one would be OK.
define double @f9(double %a, double %b, i32 %i1, i32 *%base) {
-; CHECK: f9:
+; CHECK-LABEL: f9:
; CHECK: agfi %r3, -524292
; CHECK: c %r2, 0(%r3)
; CHECK-NEXT: jl
; Check that C allows an index.
define double @f10(double %a, double %b, i32 %i1, i64 %base, i64 %index) {
-; CHECK: f10:
+; CHECK-LABEL: f10:
; CHECK: c %r2, 4092({{%r4,%r3|%r3,%r4}})
; CHECK-NEXT: jl
; CHECK: ldr %f0, %f2
; Check that CY allows an index.
define double @f11(double %a, double %b, i32 %i1, i64 %base, i64 %index) {
-; CHECK: f11:
+; CHECK-LABEL: f11:
; CHECK: cy %r2, 4096({{%r4,%r3|%r3,%r4}})
; CHECK-NEXT: jl
; CHECK: ldr %f0, %f2
%res = select i1 %cond, double %a, double %b
ret double %res
}
+
+; The first branch here got recreated by InsertBranch while splitting the
+; critical edge %entry->%while.body, which lost the kills information for CC.
+define void @f12(i32 %a, i32 %b) {
+; CHECK-LABEL: f12:
+; CHECK: cije %r2, 0
+; CHECK: crjlh %r2,
+; CHECK: br %r14
+entry:
+ %cmp11 = icmp eq i32 %a, 0
+ br i1 %cmp11, label %while.end, label %while.body
+
+while.body:
+ %c = call i32 @foo()
+ %cmp12 = icmp eq i32 %c, %b
+ br i1 %cmp12, label %while.end, label %while.body
+
+while.end:
+ ret void
+}
+
+; Check the comparison can be reversed if that allows C to be used.
+define double @f13(double %a, double %b, i32 %i2, i32 *%ptr) {
+; CHECK-LABEL: f13:
+; CHECK: c %r2, 0(%r3)
+; CHECK-NEXT: jh {{\.L.*}}
+; CHECK: ldr %f0, %f2
+; CHECK: br %r14
+ %i1 = load i32 *%ptr
+ %cond = icmp slt i32 %i1, %i2
+ %res = select i1 %cond, double %a, double %b
+ ret double %res
+}