;
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
+declare float @foo()
+
; Check register multiplication.
define double @f1(float %f1, float %f2) {
-; CHECK: f1:
+; CHECK-LABEL: f1:
; CHECK: mdebr %f0, %f2
; CHECK: br %r14
%f1x = fpext float %f1 to double
; Check the low end of the MDEB range.
define double @f2(float %f1, float *%ptr) {
-; CHECK: f2:
+; CHECK-LABEL: f2:
; CHECK: mdeb %f0, 0(%r2)
; CHECK: br %r14
- %f2 = load float *%ptr
+ %f2 = load float , float *%ptr
%f1x = fpext float %f1 to double
%f2x = fpext float %f2 to double
%res = fmul double %f1x, %f2x
; Check the high end of the aligned MDEB range.
define double @f3(float %f1, float *%base) {
-; CHECK: f3:
+; CHECK-LABEL: f3:
; CHECK: mdeb %f0, 4092(%r2)
; CHECK: br %r14
- %ptr = getelementptr float *%base, i64 1023
- %f2 = load float *%ptr
+ %ptr = getelementptr float, float *%base, i64 1023
+ %f2 = load float , float *%ptr
%f1x = fpext float %f1 to double
%f2x = fpext float %f2 to double
%res = fmul double %f1x, %f2x
; Check the next word up, which needs separate address logic.
; Other sequences besides this one would be OK.
define double @f4(float %f1, float *%base) {
-; CHECK: f4:
+; CHECK-LABEL: f4:
; CHECK: aghi %r2, 4096
; CHECK: mdeb %f0, 0(%r2)
; CHECK: br %r14
- %ptr = getelementptr float *%base, i64 1024
- %f2 = load float *%ptr
+ %ptr = getelementptr float, float *%base, i64 1024
+ %f2 = load float , float *%ptr
%f1x = fpext float %f1 to double
%f2x = fpext float %f2 to double
%res = fmul double %f1x, %f2x
; Check negative displacements, which also need separate address logic.
define double @f5(float %f1, float *%base) {
-; CHECK: f5:
+; CHECK-LABEL: f5:
; CHECK: aghi %r2, -4
; CHECK: mdeb %f0, 0(%r2)
; CHECK: br %r14
- %ptr = getelementptr float *%base, i64 -1
- %f2 = load float *%ptr
+ %ptr = getelementptr float, float *%base, i64 -1
+ %f2 = load float , float *%ptr
%f1x = fpext float %f1 to double
%f2x = fpext float %f2 to double
%res = fmul double %f1x, %f2x
; Check that MDEB allows indices.
define double @f6(float %f1, float *%base, i64 %index) {
-; CHECK: f6:
+; CHECK-LABEL: f6:
; CHECK: sllg %r1, %r3, 2
; CHECK: mdeb %f0, 400(%r1,%r2)
; CHECK: br %r14
- %ptr1 = getelementptr float *%base, i64 %index
- %ptr2 = getelementptr float *%ptr1, i64 100
- %f2 = load float *%ptr2
+ %ptr1 = getelementptr float, float *%base, i64 %index
+ %ptr2 = getelementptr float, float *%ptr1, i64 100
+ %f2 = load float , float *%ptr2
%f1x = fpext float %f1 to double
%f2x = fpext float %f2 to double
%res = fmul double %f1x, %f2x
ret double %res
}
+
+; Check that multiplications of spilled values can use MDEB rather than MDEBR.
+define float @f7(float *%ptr0) {
+; CHECK-LABEL: f7:
+; CHECK: brasl %r14, foo@PLT
+; CHECK: mdeb %f0, 16{{[04]}}(%r15)
+; CHECK: br %r14
+ %ptr1 = getelementptr float, float *%ptr0, i64 2
+ %ptr2 = getelementptr float, float *%ptr0, i64 4
+ %ptr3 = getelementptr float, float *%ptr0, i64 6
+ %ptr4 = getelementptr float, float *%ptr0, i64 8
+ %ptr5 = getelementptr float, float *%ptr0, i64 10
+ %ptr6 = getelementptr float, float *%ptr0, i64 12
+ %ptr7 = getelementptr float, float *%ptr0, i64 14
+ %ptr8 = getelementptr float, float *%ptr0, i64 16
+ %ptr9 = getelementptr float, float *%ptr0, i64 18
+ %ptr10 = getelementptr float, float *%ptr0, i64 20
+
+ %val0 = load float , float *%ptr0
+ %val1 = load float , float *%ptr1
+ %val2 = load float , float *%ptr2
+ %val3 = load float , float *%ptr3
+ %val4 = load float , float *%ptr4
+ %val5 = load float , float *%ptr5
+ %val6 = load float , float *%ptr6
+ %val7 = load float , float *%ptr7
+ %val8 = load float , float *%ptr8
+ %val9 = load float , float *%ptr9
+ %val10 = load float , float *%ptr10
+
+ %frob0 = fadd float %val0, %val0
+ %frob1 = fadd float %val1, %val1
+ %frob2 = fadd float %val2, %val2
+ %frob3 = fadd float %val3, %val3
+ %frob4 = fadd float %val4, %val4
+ %frob5 = fadd float %val5, %val5
+ %frob6 = fadd float %val6, %val6
+ %frob7 = fadd float %val7, %val7
+ %frob8 = fadd float %val8, %val8
+ %frob9 = fadd float %val9, %val9
+ %frob10 = fadd float %val9, %val10
+
+ store float %frob0, float *%ptr0
+ store float %frob1, float *%ptr1
+ store float %frob2, float *%ptr2
+ store float %frob3, float *%ptr3
+ store float %frob4, float *%ptr4
+ store float %frob5, float *%ptr5
+ store float %frob6, float *%ptr6
+ store float %frob7, float *%ptr7
+ store float %frob8, float *%ptr8
+ store float %frob9, float *%ptr9
+ store float %frob10, float *%ptr10
+
+ %ret = call float @foo()
+
+ %accext0 = fpext float %ret to double
+ %ext0 = fpext float %frob0 to double
+ %mul0 = fmul double %accext0, %ext0
+ %extra0 = fmul double %mul0, 1.01
+ %trunc0 = fptrunc double %extra0 to float
+
+ %accext1 = fpext float %trunc0 to double
+ %ext1 = fpext float %frob1 to double
+ %mul1 = fmul double %accext1, %ext1
+ %extra1 = fmul double %mul1, 1.11
+ %trunc1 = fptrunc double %extra1 to float
+
+ %accext2 = fpext float %trunc1 to double
+ %ext2 = fpext float %frob2 to double
+ %mul2 = fmul double %accext2, %ext2
+ %extra2 = fmul double %mul2, 1.21
+ %trunc2 = fptrunc double %extra2 to float
+
+ %accext3 = fpext float %trunc2 to double
+ %ext3 = fpext float %frob3 to double
+ %mul3 = fmul double %accext3, %ext3
+ %extra3 = fmul double %mul3, 1.31
+ %trunc3 = fptrunc double %extra3 to float
+
+ %accext4 = fpext float %trunc3 to double
+ %ext4 = fpext float %frob4 to double
+ %mul4 = fmul double %accext4, %ext4
+ %extra4 = fmul double %mul4, 1.41
+ %trunc4 = fptrunc double %extra4 to float
+
+ %accext5 = fpext float %trunc4 to double
+ %ext5 = fpext float %frob5 to double
+ %mul5 = fmul double %accext5, %ext5
+ %extra5 = fmul double %mul5, 1.51
+ %trunc5 = fptrunc double %extra5 to float
+
+ %accext6 = fpext float %trunc5 to double
+ %ext6 = fpext float %frob6 to double
+ %mul6 = fmul double %accext6, %ext6
+ %extra6 = fmul double %mul6, 1.61
+ %trunc6 = fptrunc double %extra6 to float
+
+ %accext7 = fpext float %trunc6 to double
+ %ext7 = fpext float %frob7 to double
+ %mul7 = fmul double %accext7, %ext7
+ %extra7 = fmul double %mul7, 1.71
+ %trunc7 = fptrunc double %extra7 to float
+
+ %accext8 = fpext float %trunc7 to double
+ %ext8 = fpext float %frob8 to double
+ %mul8 = fmul double %accext8, %ext8
+ %extra8 = fmul double %mul8, 1.81
+ %trunc8 = fptrunc double %extra8 to float
+
+ %accext9 = fpext float %trunc8 to double
+ %ext9 = fpext float %frob9 to double
+ %mul9 = fmul double %accext9, %ext9
+ %extra9 = fmul double %mul9, 1.91
+ %trunc9 = fptrunc double %extra9 to float
+
+ ret float %trunc9
+}