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llvm-mirror/test/CodeGen/Thumb2/constant-islands-new-island-padding.ll
Jinsong Ji 7ed143a4a1 [AsmPrinter] Print FP constant in hexadecimal form instead
Printing floating point number in decimal is inconvenient for humans.
Verbose asm output will print out floating point values in comments, it
helps.

But in lots of cases, users still need additional work to covert the
decimal back to hex or binary to check the bit patterns,
especially when there are small precision difference.

Hexadecimal form is one of the supported form in LLVM IR, and easier for
debugging.

This patch try to print all FP constant in hex form instead.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D73566
2020-02-07 16:00:55 +00:00

43 lines
1.3 KiB
LLVM

; RUN: llc < %s -mtriple=thumbv7-apple-ios %s -o - | FileCheck %s
@g0 = common global i32 0, align 4
@d0 = common global double 0.000000e+00, align 8
@f0 = common global float 0.000000e+00, align 4
@g1 = common global i32 0, align 4
declare i32 @llvm.arm.space(i32, i32)
; Check that the constant island pass moves the float constant pool entry inside
; the function.
; CHECK: .long 0x3f9e05ee @ float 1.23455596
; CHECK: {{.*}} %do.end
define i32 @testpadding(i32 %a) {
entry:
%0 = load i32, i32* @g0, align 4
%add = add nsw i32 %0, 12
store i32 %add, i32* @g0, align 4
%1 = load double, double* @d0, align 8
%add1 = fadd double %1, 0x3FF3C0B8ED46EACB
store double %add1, double* @d0, align 8
%tmpcall11 = call i32 @llvm.arm.space(i32 28, i32 undef)
call void @foo20(i32 191)
%2 = load float, float* @f0, align 4
%add2 = fadd float %2, 0x3FF3C0BDC0000000
store float %add2, float* @f0, align 4
br label %do.body
do.body: ; preds = %do.body, %entry
tail call void @foo20(i32 19)
%3 = load i32, i32* @g1, align 4
%tobool = icmp eq i32 %3, 0
br i1 %tobool, label %do.end, label %do.body
do.end: ; preds = %do.body
%tmpcall111 = call i32 @llvm.arm.space(i32 954, i32 undef)
ret i32 10
}
declare void @foo20(i32)