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; Test extensions of f32 to f64.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
; Check register extension.
define double @f1(float %val) {
; CHECK: f1:
; CHECK: ldebr %f0, %f0
; CHECK: br %r14
%res = fpext float %val to double
ret double %res
}
; Check the low end of the LDEB range.
define double @f2(float *%ptr) {
; CHECK: f2:
; CHECK: ldeb %f0, 0(%r2)
; CHECK: br %r14
%val = load float *%ptr
%res = fpext float %val to double
ret double %res
}
; Check the high end of the aligned LDEB range.
define double @f3(float *%base) {
; CHECK: f3:
; CHECK: ldeb %f0, 4092(%r2)
; CHECK: br %r14
%ptr = getelementptr float *%base, i64 1023
%val = load float *%ptr
%res = fpext float %val to double
ret double %res
}
; Check the next word up, which needs separate address logic.
; Other sequences besides this one would be OK.
define double @f4(float *%base) {
; CHECK: f4:
; CHECK: aghi %r2, 4096
; CHECK: ldeb %f0, 0(%r2)
; CHECK: br %r14
%ptr = getelementptr float *%base, i64 1024
%val = load float *%ptr
%res = fpext float %val to double
ret double %res
}
; Check negative displacements, which also need separate address logic.
define double @f5(float *%base) {
; CHECK: f5:
; CHECK: aghi %r2, -4
; CHECK: ldeb %f0, 0(%r2)
; CHECK: br %r14
%ptr = getelementptr float *%base, i64 -1
%val = load float *%ptr
%res = fpext float %val to double
ret double %res
}
; Check that LDEB allows indices.
define double @f6(float *%base, i64 %index) {
; CHECK: f6:
; CHECK: sllg %r1, %r3, 2
; CHECK: ldeb %f0, 400(%r1,%r2)
; CHECK: br %r14
%ptr1 = getelementptr float *%base, i64 %index
%ptr2 = getelementptr float *%ptr1, i64 100
%val = load float *%ptr2
%res = fpext float %val to double
ret double %res
}
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